I've listened to a pair of the larger Acapella loudspeakers a few years ago now at a show. Amazing dynamics and truly huge scale, if I'd got the room I'd go that way but competant small/medium sized horn speakers pale in comparison, though certainly still sound great so I made a choice and went conventional, I made the right choice but like I say, if I'd got the room... actually I'd probably do large line arrays if I'd got the room.